I'm getting ready for a transition from my 52 volt battery pack to either 60 or 72. Ideally I'd like to start with a controller upgrade that is flexible enough to run at all three voltage levels, but soon after that, I'll need to solve the voltage/battery part.
My original plan was just to go to 60 volts, since I'm really happy with my bike's performance when the battery is fully charged and for the first 10 miles of battery. After that, the sag makes it less peppy on acceleration or hill climbing. I'm hoping that with the added cells and voltage, the bike will perform at that level longer. My specific question is what are the downsides of going all the way to 72 volts instead of 60 volts per my original plan? I like the bike's manners right now, and I ride mostly with PAS and use throttle when I want to accelerate or riding up a steep incline.
In order to use my current pack, I'm going to add a 6S5P pack to my rack to run in series (if I go to 72 volts), when I want the extra performance, and I can upgrade to a 72 volt single pack later. I think the weight of the small pack won't be too much of a factor, balance-wise.
EDIT: sorry, current setup is 1000W generic rear hub, 52 volts 20 ah triangle pack with cheap Chinese cells, 36/48 volt sine wave controller, 40 amp max.
My original plan was just to go to 60 volts, since I'm really happy with my bike's performance when the battery is fully charged and for the first 10 miles of battery. After that, the sag makes it less peppy on acceleration or hill climbing. I'm hoping that with the added cells and voltage, the bike will perform at that level longer. My specific question is what are the downsides of going all the way to 72 volts instead of 60 volts per my original plan? I like the bike's manners right now, and I ride mostly with PAS and use throttle when I want to accelerate or riding up a steep incline.
In order to use my current pack, I'm going to add a 6S5P pack to my rack to run in series (if I go to 72 volts), when I want the extra performance, and I can upgrade to a 72 volt single pack later. I think the weight of the small pack won't be too much of a factor, balance-wise.
EDIT: sorry, current setup is 1000W generic rear hub, 52 volts 20 ah triangle pack with cheap Chinese cells, 36/48 volt sine wave controller, 40 amp max.